# Question

A local gas station collected data from the day’s receipts, recording the gallons of gasoline each customer purchased. The following table lists the frequency distribution of the gallons of gas purchased by all customers on this one day at this gas station.

Gallons of Gas Number of Customers

0 to less than 4......... 31

4 to less than 8......... 78

8 to less than 12....... 49

12 to less than 16........ 81

16 to less than 20...... 117

20 to less than 24....... 13

a. How many customers were served on this day at this gas station?

b. Find the class midpoints. Do all of the classes have the same width? If so, what is this width? If not, what are the different class widths?

c. Prepare the relative frequency and percentage distribution columns.

d. What percentage of the customers purchased 12 gallons or more?

e. Explain why you cannot determine exactly how many customers purchased 10 gallons or less.

Gallons of Gas Number of Customers

0 to less than 4......... 31

4 to less than 8......... 78

8 to less than 12....... 49

12 to less than 16........ 81

16 to less than 20...... 117

20 to less than 24....... 13

a. How many customers were served on this day at this gas station?

b. Find the class midpoints. Do all of the classes have the same width? If so, what is this width? If not, what are the different class widths?

c. Prepare the relative frequency and percentage distribution columns.

d. What percentage of the customers purchased 12 gallons or more?

e. Explain why you cannot determine exactly how many customers purchased 10 gallons or less.

## Answer to relevant Questions

A staff member at a local grocery store was assigned the job of inspecting all containers of yogurt in the store to determine the number of days to expiry date for each container. Containers that had already expired but were ...How are the relative frequencies and percentages of categories obtained from the frequencies of categories? Illustrate with the help of an example. a. Prepare a frequency distribution table for non-Hodgkin lymphoma rates for women. b. Construct the relative frequency and percentage distribution columns. c. Draw a histogram and polygon for the relative frequency ...Explain for what kind of frequency distribution an ogive is drawn. Can you think of any use for an ogive? Explain. Refer to the frequency distribution table constructed in Exercise 2.26. Prepare the cumulative frequency, cumulative relative frequency, and cumulative percentage distributions by using that table.Post your question

0